David Davis quit as the Brexit Secretary following a Cabinet summit at Chequers

British Prime Minister Theresa May moved to reassert her authority on Tuesday after two top cabinet members quit and launched broadsides against her Brexit plans, winning support from many of her ministers including a leading eurosceptic.

"Productive cabinet meeting this morning - looking ahead to a busy week", May said on Twitter, as the resignations of Johnson and Davis sent shockwaves through Westminster and fuelled speculation that the turmoil could eventually topple her.

Senior Conservative Bernard Jenkin warned there had been a "massive haemorrhage of trust" as a result of the direction the PM was taking and said it "may well come" to a vote over her leadership.

He says the Brexit "dream is dying, suffocated by needless self-doubt", and that Britain is "headed to the status of a colony", having to swallow European Union writ without "any ability to influence these laws as they are made".

She was not left in the clear by her MPs either, with challenges from hardline Brexiteers - with Peter Bone claiming campaigners had been "betrayed".

But we were still a little surprised to discover that this parting missive on the issue of Brexit - which he was apparently still writing when Number 10 confirmed his departure - spends a lot of time on vehicle regulation.

Merkel welcomed the fact that Britain had formulated a position to take into stalled negotiations with the EU.

"I was elected to represent my constituents and the Prime Minister'S team needs to be aware that backbench MPs won't sit idly by and allow a so-called "soft Brexit" with us being half-in, half-out", Andrea Jenkyns wrote in The Daily Telegraph.

Last month, Hunt said it was inappropriate for businesses like Airbus to issue warnings about moving jobs because of Brexit and that they should instead be getting behind May in her push for a good deal on leaving the EU.

This is far less certain than some of her opponents appear to believe.

The mother-of-one from Hampstead, north London, is still in prison in Iran and was told in May she could face a new charge of spreading propaganda.

Mr Kinnock said the Chequers proposal was a "step in the right direction because at least the prime minister was accepting that our future lies with Europe".

"Hopefully we will resist very strongly any attempt to get any further concessions from us on this, because I think this goes further than we should have gone already".

Tory MPs can trigger a vote of no confidence if 48 of them submit letters to the 1922 backbencher committee, chaired by Sir Graham Brady.

"May is fighting for her survival", Mujtaba Rahman, a managing director at Eurasia Group, said in a research note.

"If a country cannot pass a law to save the lives of female cyclists - when that proposal is supported at every level of UK Government - then I don't see how that country can truly be called independent."

"Unfortunately his contribution to the development of bilateral ties with Russian Federation was rather modest, to put it mildly", President Vladimir Putin's spokesman Dmitry Peskov told reporters.

Hunt said it was a moment to show that Britain remained a "strong, confident voice in the world". Her spokesman said the cabinet had discussed the publication of a "white paper" policy document on Britain's future ties with the European Union and stepping up preparations for any no-deal outcome to the negotiations with Brussels.

May's Cabinet collectively agreed on Friday on a relatively "soft" Brexit proposal that would result in close ties between the European Union and United Kingdom, and free trade on goods.

"But the popular will, as manifested in surveys of public opinion, suggest that at present about 70 percent of the public judge that the Government is handling the Brexit negotiations badly, and it's been on a declining trend pretty much for the past year".

"I had with David Davis a frank and cordial relationship, and now I will work next Monday with this negotiator appointed by Mrs May", he told AFP.